Waveplates, also called Retardation plates or Retarders, change the state of polarization of a light beam passing through it. The waveplate resolves an incoming beam oflight into two orthogonally polarized components while retarding the phase of one of the components relative to the other. Zero Order Waveplates are constructed oftwo Crystal Quartz plates that are oriented so that the optical axes are orthogonal. Our standard Waveplates are air spaced. Cemented and contacted versions are also available. Zero order Waveplates are far less sensitive to temperature changes. True Zero Order Waveplates are available as small as 0.5mm in diameter and as thin as 90 microns. Tower Optical standard Waveplates are Laser Quality Crystal Quartz which are AR coated. Several wavelengths are available with Broad Band Coatings (asterisked on chart). Other wavelengths and custom dimensions are available on a special order basis. Standard Waveplates are supplied mounted in Z" (8mm clear aperture, CA) or 1" (15mm CA) may also be ordered unmounted. In addition, |